Granted Patent
Utility
US 4,659,117 · App. 06/517,694
Flexible coupling for pipes in exhaust systems of motor vehicles
Inventors:
Wieland Holzhausen, Kurt Albecker
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Jul 27, 1983
Inventors
Wieland Holzhausen
Kurt Albecker
Assignee (at issue)
IWK Regler und Kompensatoren GmbH
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.